Electronic Device

1. An electronic device comprising: a processor; a foldable keyboard comprising a first keyboard part and a second keyboard part; a housing that encloses the processor, wherein the housing comprises a first housing part and a second housing part, the first housing part comprises the first keyboard part, the second housing part comprises the second keyboard part, and the first housing part and the second housing part are configured to be opened or closed relative to one another by folding the housing; and an output terminal that supplies an image signal output from the processor to an external display device, wherein the electronic device includes no display device, wherein the first housing part and the second housing part are formed in such a manner that, in a state where the first housing part and the second housing part are closed, a thickness in a height direction of the first housing part and a thickness in the height direction of the second housing part become gradually less from a folded portion end to a leading end, one of the first housing part and the second housing part comprises a space key having a first rectangular shape, the other of the first housing part and the second housing part comprises a touch pad having a second rectangular shape, the space key and the touch pad are positioned adjacent to each other, a connection section between the first housing part and the second housing part being between the space key and the touch pad, in a state where the first housing part and the second housing part are opened, and the space key and the touch pad are arranged so that a lower edge of the space key and a lower edge of the touch pad are on the same line.

2. The electronic device of claim 1 , wherein at least one of the first housing part or the second housing part comprises an operating section on an external surface in a state where the first housing part and the second housing part are closed, and the operating section turns on or off the processor.

3. The electronic device of claim 1 , wherein the output terminal is compatible with a type-C Universal Serial Bus (USB).

4. The electronic device of claim 1 , further comprising: an antenna unit comprising an antenna element connected to the processor and configured to transmit or receive a radio wave, wherein at least one of the first housing part or the second housing part retains the antenna element at positions separate from outermost sections of the at least one.

5. The electronic device of claim 1 , wherein at least one of the first housing part or the second housing part comprises an insertion port which is electrically connected to the processor and into which an external recording medium can be inserted in a counter surface to be opposed to the other of the first housing part and the second housing part in a state where the first housing part and the second housing part are opened, and to be exposed in a state where the first housing part and the second housing part are closed.

6. The electronic device of claim 1 , wherein the processor recognizes a configuration of the display device through the output terminal, and outputs the image signal in a form made conformable to electrical specifications of the display device.

7. The electronic device of claim 1 , further comprising: an antenna unit comprising antenna elements connected to the processor and configured to transmit or receive a radio wave, wherein at least one of the first housing part or the second housing part retains the antenna elements at positions of outer edges not overlapping with at least part of the processor.

8. The electronic device of claim 1 , further comprising: a power-supply unit retained in one of the first housing part and the second housing part, that supplies electric power to the processor, wherein the processor is retained in the other of the first housing part and the second housing part.

9. The electronic device of claim 1 , wherein the processor recognizes a configuration of the display device through the output terminal, and outputs the image signal in a form made conformable to an application corresponding to the display device.

10. The electronic device of claim 1 , wherein at least one of the first housing part or the second housing part comprises an open/close sensor that detects an opened or closed state of the first housing part and the second housing part in a part of a side face to be opposed to a side face of the other of the first housing part and the second housing part in a state where the first housing part and the second housing part are opened, or in a part of a top surface to be opposed to a top surface of the other of the first housing part and the second housing part in a state where the first housing part and the second housing part are closed.

11. The electronic device of claim 1 , wherein at least one of the first housing part or the second housing part comprises a High-Definition Multimedia Interface (HDMI) terminal in a side face at an inner side with respect to a position of a user at time of use, and comprises a terminal for sound in the side face at a front side with respect to the position of the user at time of use.

12. The electronic device of claim 1 , wherein the first housing part and the second housing part are formed in such a manner that, in a state where the first housing part and the second housing part are opened, a thickness in a height direction at each of both ends of the first housing part and the second housing part is less than a thickness in the height direction at a center of the first housing part and the second housing part.

13. The electronic device of claim 1 , wherein at least one of the first housing part or the second housing part comprises elastically-deformable shock-absorbing members at parts of a side face to be opposed to a side face of the other of the first housing part and the second housing part in a state where the first housing part and the second housing part are opened.

14. The electronic device of claim 1 , further comprising: a power-supply unit configured to supply electric power to the processor and retained in one of the first housing part and the second housing part, wherein the one retaining the power-supply unit comprises a housing having a shape conformable to a size of the power-supply unit.

15. The electronic device of claim 1 , wherein the first housing part and the second housing part are connected to each other in such a manner that the first housing part and the second housing part can be opened or closed between a key configured to input a signal of G to the processor and a key configured to input a signal of H to the processor.

16. The electronic device of claim 1 , wherein the first housing part and the second housing part are opened or closed with respect to a connection section between the first housing part and the second housing part without straddling any keys at the connection section.

17. The electronic device of claim 1 , wherein the first housing part and the second housing part are opened or closed with respect to a connection section between the first housing part and the second housing part with straddling any keys at the connection section.

18. An electronic device comprising: a processor; a foldable keyboard comprising a first keyboard part and a second keyboard part; a housing that encloses the processor, wherein the housing comprises a first housing part and a second housing part, the first housing part comprises the first keyboard part, the second housing part comprises the second keyboard part, and the first housing part and the second housing part are configured to be opened or closed relative to one another by folding the housing; and an output terminal that supplies an image signal output from the processor to an external display device, wherein the electronic device includes no display device, wherein the first keyboard part is adjacent to the second keyboard part in a first direction, in a state where the first housing part and the second housing part are opened, the first keyboard part includes a first key, a second key, and a third key, the second keyboard part includes a fourth key adjacent to the first key, a fifth key adjacent to the second key, and a sixth key adjacent to the third key, a width of the first key is larger than each of a width of the second key, a width of the third key, a width of the fourth key, and a width of the fifth key, a width of the sixth key is larger than each of the width of the second key, the width of the third key, the width of the fourth key, and the width of the fifth key, the width of the second key is larger than the width of the third key, the width of the fifth key is larger than the width of the fourth key, edges of the first key, the second key, and the third key facing the second keyboard part are on the same line in a second direction different to the first direction, and edges of the fourth key, the fifth key, and the sixth key facing the first keyboard part are on the same line in the second direction.

19. The electronic device of claim 1 , wherein at least one of the first housing part or the second housing part comprises a biometric sensor configured to start or stop the processor on the basis of authentication based at least in part on biological information of a user.